Crossword clues for the word: GLT The word GLT has appeared as an answer to at least 5 crossword clues on different crossword puzzles. Crossword clues for GLT Showing 1 to 5 of 5 results Clue(s) Bookbinder's abbreviation. Bookbinding abbreviation. Gold in color: Abbr. Goldleaf: Abbr. Having gold edges: Abbr.